PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-08:12:30
G02     292.2          82.3                5.8 +/-    0.91       5.9 +/-    0.91  0.140 / 0.240
G05     170.2          21.4                5.7 +/-    1.73      12.2 +/-    1.73  0.140 / 0.200
G06     39.5           50.8                4.4 +/-    0.63       5.5 +/-    0.63  0.030 / 0.040
G12     320.8          61.5                4.7 +/-    0.40       5.3 +/-    0.40  0.030 / 0.030
G17     76.7           17.0                5.0 +/-    2.01      11.9 +/-    2.01  0.040 / 0.030
G19     65.2           31.9                4.2 +/-    1.75       7.1 +/-    1.75  0.040 / 0.030
G24     239.3          30.3                6.3 +/-    1.79      11.0 +/-    1.79  0.070 / 0.100
G25     317.1          18.8                3.9 +/-    1.98       8.8 +/-    1.98  0.060 / 0.080